Features such as height, weight, and skin color _______ from individual to individual and from face to face.
A) change B) vary
C) alter D) convert
第1题:
选择CSS文本属性中相对应的属性分别设置如下图所示文本:font-family属性、font-size属性、font-weight属性、font-style属性、text-decoration属性、color属性、text-indent属性、first-letter属性、line-height属性、word-spacing属性、text-transform属性 具体图示详见附件
第2题:
3、基于教学视频中的供应商零件数据库,能正确查询出“所有工程都使用的零部件名称、颜色、重量”的关系代数表达式是()。
A.πPNAME,COLOR,WEIGHT ((ΠJNO,PNO(SPJ) ÷πJNO(J)) ∞P)
B.πPNAME,COLOR,WEIGHT ((ΠJNO,PNO(SPJ) ÷πJNO(P)) ∞J)
C.πPNAME,COLOR,WEIGHT,JNO,PNO(SPJ∞P) ÷πJNO(J)
D.πPNAME,COLOR,WEIGHT,PNO(SPJ∞P) ÷ J
第3题:
如果运用proc means过程分析变量weight,height,下面哪个语句是正确的? ()
A.var weight, height;
B.class weight, height;
C.output weight, height;
D.by weight, height;
第4题:
16、下列样式定义字体为宋体、字体颜色为红色、斜体、大小20px、粗细800号,正确的定义是()。
A.p {font-family:20px; font-size:宋体; font-weight:800; color: red; font-style:italic; }
B.p {font-family:宋体;font-size:20px;font-weight:800;color:red; font-style:italic; }
C.p {font-family:20px; font-size:800; font-weight:宋体; color:red; font-style:italic; }
D.p{font-family:800; font-size:20px; font-weight:red; color:italic; font-style:宋体;}
第5题:
下列HTML代码,实现左右固定,中间宽度自适应的三列布局的样式代码是 <div id="left">l</div> <div id="right">r</div> <div id="middle">m</div>
A.#left {position:absolute;left:0px; top:0px; width:180px; height:500px; background-color:#FF0;} #middle{position:absolute;left:180px; top:0px; height:500px; background-color:#FF0000; margin:0px 180px;} #right {position:absolute; right:0px; top:0px; width:180px; height: 500px; background-color:#00CC00;}#B.#left {position:absolute;left:0px; top:0px; width:180px; height:500px; background-color:#FF0;} #middle {height:500px; background-color:第6题:
把零件号='P2'的零件的重量增加50,颜色改为'黄色',SQL语句为——
A.UPDATE P SET WEIGHT=WEIGHT+50,COLOR='黄色' WHERE PNO='P2'
B.INSERT INTO P(PNO,WEIGHT,COLOR) VALUES ('P2',50,'黄色')
C.DELETE FROM P WHERE WEIGHT=50,COLOR='黄色', PNO='P2'
D.UPDATE P SET WEIGHT=WEIGHT+50,COLOR=黄色 WHERE PNO=P2